The S7500E series features rich power modules, which can be classified based on different specifications, as shown in Table 1 .
Table 1 Classification of the power modules
Model | Height | Power input (AC/DC) | PoE output support |
PSR320-A | 1U | AC | No |
PSR320-D | 1U | DC | No |
PSR650-A | 1U | AC | No |
PSR650-D | 1U | DC | No |
PSR1400-A | 3U | AC | No |
PSR1400-D | 3U | DC | Yes |
PSR2800-ACV | 3U | AC | Yes |
Table 2 Features of the power modules
Feature | Description |
Protection functions | Support input under-voltage protection, output over-voltage protection, short-circuit protection, over-current protection, and overheat protection |
1+1 hot backup support | Support dual-power-grid 1 + 1 backup and current sharing using power modules of the same model |
Hot-swap support | Support hot-swap with the power switch turned off while the device is in operation |
Generally, you can select 1U power modules for the S7502E/S7503E-S switches, and select 3U power modules for the other models of the S7500E series.
The S7500E series provides rich interface cards; the switches of the same model with different cards have different overall power consumption. Therefore, you need to select appropriate power modules according to the overall power consumption of your switches.
To enable you to flexibly select power modules of different models for the switches with different overall power consumption, H3C specially designed a power module adapter PWR-SPA.
If you use a switch with a power module high power consumption, such as PSR1400-A, PSR1400-D or PSR2800-ACV, you can select the PWR-SPA power module adapter, in conjunction with a PSR650-A or PSR650-D power module to provide power to the switch in the case that the overall power consumption of the switch is no higher than 650 W.
In this case, you need to insert the PWR-SPA power module adapter into the switch, and then insert the PSR650-A or PSR650-D power module into the adapter. For the detailed installation procedure, refer to H3C PWR-SPA Power Module Adapter User Manual.
l Before using the power module adapter and a power module to provide power to a switch, you need to calculate the overall power consumption of the switch, to ensure that the PSR650-A or PSR650-D power module can provide stable power supply to the switch.
l If you use the power module adapter and a power module to provide power to a switch, PoE supply cannot be provided to the switch. Please select the power supply mode as needed.
l The overall power consumption of a switch depends on the SRPUs, service boards and fan trays on the switch. The overall power consumption of the switch = SRPU power consumption + service board power consumption + fan tray power consumption.
Table 3 Power module selection
Chassis Power
module | S7502E | S7503E-S | S7503E | S7506E | S7506E-V | S7510E |
PSR320-A | Y1 | Y1 | N | N | N | N |
PSR320-D | Y1 | Y1 | N | N | N | N |
PSR650-A | Y1 | Y1 | Y2 | Y2 | Y2 | N |
PSR650-D | Y1 | Y1 | Y2 | Y2 | Y2 | N |
PSR1400-A | N | N | Y1 | Y1 | Y1 | Y1 |
PSR1400-D | N | N | Y1 | Y1 | Y1 | Y1 |
PSR2800-ACV | N | N | Y1 | Y1 | Y1 | Y1 |
l “Y1” indicates that you can directly insert the power module into a chassis.
l “Y2” indicates that you need to first insert the power module adapter into a chassis, and then insert the power module into the power module adapter.
l “N” indicates that you cannot insert the power module into a chassis.
l The power modules introduced in the above sections cannot be intermixed on one device if they are of different models.
For example, if an S7503E switch has two Salience VI SRPUs, three LSQ1GV48SC service boards, and one S7503 fan tray, then the current maximum power consumption of the switch is 2 × 50 + 3 × 95 + 30 = 415 W.
You can select power modules such as PSR1400-A, PSR1400-D or PSR2800-ACV to provide power to the switch, or you can select the power module adapter, in conjunction with a PSR650-A or PSR650-D power module to provide power to the switch. For the power consumption of different SRPUs, service boards, and fan trays, refer to S7500E Series Ethernet Switches Installation Manual.
The S7500E series can work as a power sourcing equipment (PSE) to supply power to powered devices (PDs) such as IP telephone, wireless LAN access points, and web cameras from Ethernet interfaces through twisted pair cables.
To provide power to the powered devices, a switch should adopt power over Ethernet (PoE) modules, which include external PoE power modules and internal PoE power modules.
(1) For the S7502E or S7503E-S switch, besides the internal power module (providing power to the switch), you need to select an external power module (for example, PSE2500-A3) to provide power to the powered devices.
(2) For the S7503E, S7506E, S7506E-V or S7510E switch, you can select an internal PoE power module (PSR1400-D/PSR2800-ACV) to provide power to both the switch and the powered devices. The maximum PoE output of the switches with different power modules is as follows:
l Switches using the PSR1400-D power module can provide 6720 W of PoE supply at most.
l Switches using the PSR2800-ACV power module can provide 1400 W of PoE supply at most.
If you use homemade PoE power cables to provide power input to the S7502E/S7503E-S switch, make sure that the power cables can bear 50A current, and the lead section is no smaller than 10 mm2, thus ensuring that the switch can work stably.
(1) Bail latch | (2) AC power socket |
(3) Power switch | (4) Status LED |
(5) Power module handle | (6) Captive screws |
Figure 1 Schematic view of the PSR320-A
Table 4 Technical specifications for the PSR320-A
Item | Specifications |
Rated voltage range | 100 to 240 VAC; 50/60Hz |
Max output power | 300 W |
Dimensions (H × W × D) | 40 × 140 × 350 mm (1.57 × 5.51 × 13.78 in.) |
Number of input interfaces and cables | 1 |
(1)Grounding point | (2) Positive (+) terminal of DC input |
(3) Negative (–) terminal of DC input | (4) Power switch |
(5) Status LED | (6) Power module handle |
(7) Captive screws | |
Figure 2 Schematic view of the PSR320-D
Table 5 Technical specifications for the PSR320-D
Item | Description |
Rated voltage range | –48 to –60 VDC |
Max output power | 300 W |
Dimensions (H × W × D) | 40 × 140 × 350 mm (1.57 × 5.51 × 13.78 in.) |
Number of input terminals and cables | 3 |
(1) Bail latch | (2) AC power socket |
(3) Power switch | (4) Status LED |
(5) Power module handle | (6) Captive screws |
Figure 3 Schematic view of the PSR650-A
Table 6 Technical specifications for the PSR650-A
Item | Description |
Rated voltage range | 100 to 240 VAC; 50/60Hz |
Max output power | 650 W |
Dimensions (H × W × D) | 40 × 140 × 350 mm (1.57 × 5.51 × 13.78 in.) |
Number of input interface and cable | 1 |
(1) Grounding point | (2) Positive (+) terminal of DC input |
(3) Negative (–) terminal of DC input | (4) Power switch |
(5) Status LED | (6) Power module handle |
(7) Captive screws | |
Figure 4 Schematic view of the PSR650-D
Table 7 Technical specifications for the PSR650-D
Item | Description |
Rated voltage range | –48 VDC to –60 VDC |
Max output power | 650 W |
Dimensions (H × W × D) | 40 × 140 × 350 mm (1.57 × 5.51 × 13.78 in.) |
Number of input terminals and cables | 3 |
(1) Captive screws | (2) Power switch |
(3) Status LED | (4) AC power socket |
(5) Power cable retention clip | (6) Power module handle |
Figure 5 Schematic view of the PSR1400-A
Table 8 Technical specifications of the PSR1400-A
Item | Description |
Rated voltage range | 100 VAC to 240 VAC; 50/60Hz |
Max output power | 1150 W (110 V) |
1400 W (220 V) |
Dimensions (H × W × D) | 128 × 196 × 380 mm (5.04 × 7.72 × 14.96 in.) |
Number of input interfaces and cables | 1 |
(1) Captive screws | (2) PoE monitoring port |
(3) Status LEDs | (4) Negative (–) terminal of DC input |
(5) Positive (+) terminal of DC input | (6) Power module handle |
(7) System power switch | (8) PoE |
